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Article: Increased intrinsic excitability of lateral wing serotonin neurons of the dorsal raphe: a mechanism for selective activation in stress circuits.

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Crawford LK; Craige CP; Beck SG
J. Neurophysiol., 2010


Table 2.

Differences in lwDR membrane characteristics remain despite blockade of major synaptic input

RMP, mV Res, MOhm Tau, ms AP Thr, mV AP Amp, mV AP Dur, ms AHP Amp, mV AHP t1/2, ms Firing Rate @80 pA, Hz Gain, Hz/pA
vmDR −66.1 ± 4.8 441.5 ± 49.2 22.8 ± 4.5 −21.4 ± 1.3 59.5 ± 2.2 1.9 ± 0.1 27.2 ± 1.8 134.1 ± 41.7 2.1 ± 0.8 0.03 ± 0.01
lwDR −60.6 ± 4.6 667.2 ± 34.2** 37.2 ± 3.5* −24.8 ± 1.3 67.4 ± 2.7* 3.0 ± 0.2*** 29.8 ± 1.3 259.4 ± 15.5* 6.7 ± 1.7* 0.09 ± 0.02*

  • Values are means ± SE; vmDR, n = 5; lwDR, n = 6.

  • ↵* P < 0.05;

  • ↵** P < 0.01;

  • ↵*** P < 0.001. Student's t-test was used to compare attributes of vmDR neurons versus lwDR neurons following pharmacological blockade of major synaptic input to 5-HT neurons. See Table 1 for abbreviations.


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